Railway truck



. E. W. SUMMERS RAILWAY TRUCK Fil M y-9.1921 4 Sheets-Sheet 1] nv vroe Wl masses zmwazw k Feb. 26, 1924.. 1,485,311

E. W. SUMMERS I RAILWAY TRUCK File y a. 1921 4 Sheets-Sheet 2 I h] FIEZ.

E. W. SUMMERS RAILWAY TRUCK Feb. 26 1924. 1,485,311

File M y 9. 1921 I 4 Sheets-Sheet s Fll3-'7.

. m venroe I 7 1 0 M my W/TNESSES 5 m 0 61M M 141W Feb 26, 1924. 1,485,311 E. w. SUMMERS RAILWAY TRUCK Filed y 9, 1921 4 Sheets-Sheet 1 r l l l I l l I I i l I FIB.E.

l0 l3 u I3 I /2 A 5 l6 8 l5 INVENTOR WI7'NEIS8ES W4 Patented Feb. 26, 19

UNITED EDGAR W. SUMMERS, F PITTSBURGH, PENNSYLVANIA; PATIENCE EXEGUTRIX OF SAID EDGAR.

Application filed May 9,

To all whom it may com C. SUMMERS W. SUMMERS, DECEASED.

RAILWAY TRUCK.

Be it known that I, EDGAR W. SUMMERs, a citizen of the United States, and a resident of Pittsburgh, in

the county of Allegheny and State of Pennsylvania, have invented Railway Trucks, of wh a specification.

he invention a new and useful Improvement in ich the following is relates to railway car trucks, and has particularly to do with the axle journal, journal bearing,

and the portion of the upon the journal box.

As at present manufa above mentioned journal box, truck frame resting ctured V and used, the

parts of railway car trucks are standardized to accommodate a single form of journal bearin g known as the M.

C. 13. (Master Car Builders) journal bearing, which rests upon the axle journal, and upon which the journal box is indirectly supported. The ends of the journal hearing form thrust bearing faces which cooperate with the flanges of the axle journal to resist lateral movements of the car due both to the irregularity of centrifugal force of a a curve.

tracks and to the car passing around In use, the standard bearings wear away to such an extent that wear being most rapid they must be replaced, at the ends of the bearings because they are of insufficient area to properly distribute the lateral thrust of a car upon the axle flanges. The'conc'entration of lateral thrust upon the small end or thrust bearing faces extent, the maintaining prevents, to a large of a proper film of lubrication between the cooperating axle and bearing thrust faces, lubricated faces are and the insufficiently cut away much more rapidly than if adequate lubrication were possible.

To facilitate the removal a standard journal bearing,

of known as a wedge, is ournal bearing and journal box.

a block, placed between the To remove a'bearing, the box is jacked or otherwise moved upwardly in parallel relation to the axle until pressure is relieved from the wedge. moved, the bearing rais Thereafter,

the wedge is reed from the journal to such height that its outer thrust bearing face is free from'the journal flange, and the bearing then moved outwardly through the opening in the journ al'box. It is largely and replacement 1921. Serial. No. 468,009.

because the several parts of the truck are constructed to permit only of this manner of removing and replacing journal bearings that the end thrust facesof the bearing are of insufficient area to properly resist. wear.

The primary object of this invention is to so construct certain of the above named parts of railway car trucks that bearings having much larger end thrust faces may be used and be readily replaced either by bearings having enlarged end thrust faces or by standard bearings.

A further object is to provide a journal box the outer end of which may be elevated to remove the bearing.

The invention is illustrated in the accompanying sheets of drawings ofwhich Fig. 1 is a vertical longitudinal central sectional view through the car axle, journal bearing, journal box, and outer end of the truck frame, the plane of view being indicated by the line II, Fig. 2; Fig. 2 a transverse sectional View taken on the broken line IIII, Fig. 1; Fig. 3 a view of the parts indicated in Fig. 1, the outer end of the journal box being partially turned upwardly in the operation of the removal of the journal bearing; Fig. 4 a view similar to Fig. 3 showing the journal box being fully turned upwardly to permit the removal of the journal bearing, such bearing being indicated as having its outer end elevated prior to its removal; Fig. 5 a side view of the parts in the positions indicated in Fig. 4 the bearing having been removed; Fig. 6 a perspective view of the journal bearing illustrated in Figs. 1', 2

and 3; Fig. 7 a view bearing as having replaced the journal bearing of Fig. 6; Fig. 8 a view similar to Fig. 2 showing the standard bearing of Fig. 7 in place of the bearing of Fig. 6.

In the practice of the invention there is placed between the axle journal and the journal box a journal bearing having end thrust faces substantially semi-circular in form and extent. In other words, the lower edges of the thrust bearing faces extend downwardly to, or substantially to, a horizontal plane passing through the axis of the axle. The lower wall of the journal box is spaced away from the outer end of the axle to permit the outer end of the box to be turned upwardly at such angle to the'axle that the outer end of the journal bearing may be sufficiently elevated to have its lower edges clear the outer flange of the axle. The truck frame and journal box are provided with means preferably in the form of cooperating lugs to limit the upward turning of the outer end of the box and to render the further application of lifting force upon the outer end of the box effective to raise the box bodily in parallel relation with its extreme inclined position.

' In the illustrative embodiment of the invention there is indicated a car axle 1 provided with a journal 2 having end flanges 3 and 4: forming end thrust bearing faces, all of which may be of standard or any desired construction. Upon the journal 1, there is mounted a journal bearing 5, which supports the journal box 6, upon which in turn the end of the truck side frame 7 rests.

While, as far as some features of the invention are concerned, the journal bearing 5 may be variously formed, it is preferred to use a bearing of the form particularly illustrated in Fig. 6. This bearing has end thrust faces 8 and 9 which are semicircular in form and extent to give a maximum area of bearing surface against the journal flanges 3 and a and at the same time permit the bearing to be applied laterally to the journal. The interior journal-bearing face of the block is of usual form, being aportion of a cylinder. The exterior box-bearing portion of the block preferably comprises a central horizontal face 10, and, at each side thereof, inclined faces 11 extending downwardly and outwardly from the horizontal face. The faces 10 and 11 preferably lie in the same plane as the corresponding faces of the standard journal hearing so that in service, should occasion arise to do so, a standard journal bearing may replace the bearing of Fig. 6. Rather than having the horizontal face 10 and the inclined faces 11 extend continuously from end to end of the bearing, these faces are interrupted by grooves 12, thus effecting a substantial saving in the metal required to form the bearing. To properly retain the bearing in the journal box, it is provided with lugs 13 adapted to extend laterally into pockets 14 formed in the journal box, as seen in ig. 3. The front end of the bearing may be provided with lugs 15 serving the double purpose of preventing the bearing from being placed wrong end foremost in a box, and for engaging the bearing both for removing it from, and placing it in, the journal box. With respect to the placing of the bearing in a box, it will be understood that the end fillets of the journal are of substantially different radii, and that to have the bearing properly rest upon the journal its corresponding rounded edges must conform to the fillets. Between the ends of the bearing, its lower edges may be recessed as at 16 to eifecta further saving in the amount of metal required to construct the bearing. Such recessing of the edges of the box forms, in effect, end legs upon the bearing. As seen in Fig. 2 these legs preferably do not conform neatly to the journal but are spaced slightly from it.

The journal box 6 may be of standard form with the exception that its lower wall is spaced from the journal to an extent sufficient to permit the outer end of the box to be turned upwardly to the final position indicated in Fig. 4. This is preferably effected by forming a depression 17 in the lower outer end of the box, such construction permitting the major portion of the lower wall of the box to form a grease well sufficiently close to the journal to adequately lubricate it.

As seen in Figs. 2 and of this well-forming part of the box is preferably flattened to form a jacking pad to receive a jack when it is desired to turn the outer end of the box upwardly. The interior of the upper wall of the box is provided with a horizontal bearing face 18 and with adjoining inclined bearing faces 19 which rest upon the bearing faces 10 and 11 of the journal bearing. The box may be further provided with a dust ring holder 20, lugs 21 for the attachment of a lid, and a recess 22 to receive the end lug 32 found on standard journal bearings, all of which parts are of familiar construction.

As previously stated, the journal box and truck frame may be provided with cooperating lugs for limiting the upward turning of the box. Preferably, each side face of the box is provided with a laterally extending lug 23 of the general wedge-shape indicated in Fig. 5, and the truck frame 7 with two pairs of lugs 2d and 25, the members of each pair being arranged one on each side of a box lug 23 and spaced from the sides of such lug. Pins 26 and 27 may extend, respectively, through the pairs of lugs 2a and 25 below the box lugs 23 so that when the truck frame is elevated by a crane or otherwise, the car axles may also be lifted. The upper central portion of the journal box may be provided with a rib 28 adapted to be received by a groove 29 formed on the lower face of side frame 7.

When it becomes necessary or desirable to remove and replace a journal bearing, the outer end of the journal box is turned upwardly. This may be done by means of a jack placed below the journal box and operating on the flattened portion thereof substantially in the direction indicated by the arrow 30 in Fig. 3. When the box has been so turned that its longitudinal axis is inclined to that of the axle substantially to the extend indicated in Fig. 3 the box 8, the outer face.

lugs 23 are brought into contact withthe outer members of the pairs of frame lugs 24 and 25 so that further upward lifting force applied to the outer end of the journal box causes such box as a whole to move upwardly from its position shown inFig. 3

to that shown in Fig. 4: so that the rear end of the box is above and out of contact with the rear end of the journalbearing. The journal bearing may then be engaged by its lugs 15, its outer end lifted so that the lower edges of its thrust bearing face 8 are above the periphery of flange 3 as seen in Fig. 4, and the block moved outwardly through the journal box opening.

With the box in the position indicated in Fig. 4, a new bearing may be placed upon the journal, and such new bearing maybe either of the form shown particularly in Fig. 6, or it may be a standard bearing 31, the form of which is shown in Figs. 7 and 8. Thus, the special bearing, constructed to have much longer life than the standard bearing and tohave other advantages explained above, may be replaced either by another special bearing of the same type, or, if such special bearing is not available it may be replaced by a standard hearing, a supply of which is usually readily available. If a standard bearing is used, its inner lug 32 may engage the recess 22 formed in the inner end of the journal box, and its outer end lugs 33 may engage box lugs 34 to retain the bearing in place.

From the foregoing it will readily be seen that, in the practice of the invention, journal bearings having greatly enlarged end thrust bearing faces may be used with the result that the life of the bearing is very substantially prolonged, and this without additional cost of construction. It will furthermore be seen that the bearing may be readily removed and replaced either by a. similar bearing, or by a standard bearing having much smaller end thrust faces.

According to the provisions of the patent statutes, I have described the principle and operation of my invention together with the construction which I now consider. to represent the best embodiment thereof. However, I desire to have it understood that, within the scope of the appended claims, the invention may be practiced with other forms of construction than that specifically shown and described.

I claim as my invention:

1. In a railway truck, the combination of an axle provided with a journal having at its end a flange forming a thrust bearing face, a bearing mounted upon the journal and having a substantially semi-circular end face cooperating with said thrust bearing face, and a journal box enclosing said journal and bearing and having the outer portion of its lower wall spaced from the journaltopermit the outer end of the box to be turned upwardly to an extent sufiicient for the removal of said bearing.

2. In a railway truck, the combination of an axle provided witha journal having flanges forming" end thrust bearing faces, a bearing mounted upon the journal and having substantially semi-circular endfaces cooperating with said thrust bearing faces, and a journal box enclosing said journal and bearing and having adepression at its lower outer end to permit the outer end of the box to be turned upwardly at a suflicient angle to the axle for the removal of said bearing. I

3. In a railway truck, the-combination of an axle provided with a journal having flanges forming end thrust bearing faces, a bearin mounted upon the journal and having su stantial semi-circular end faces cooperating with said thrust bearing faces, a journal box enclosing said journal and bearing and having a depression at its lower outer end to permit the outer end of the box to be turned upwardly at an angle to the axle sufficient for the removal of said bearing, and a truck frame supported by said box, said frame and box being pro, vided with cooperating lugs .for limiting said upward turning of the box.

4:. In a railway an axle provided with a journal having at its end a flange forming a thrust bearing face, a bearing mounted upon the journal and having a substantially semi-circular end face cooperating with said thrust bearing face, a journal box enclosing said journal and bearing and having its lower wall spaced from the journal to permit the the box to be turned" upwardly for the removal of said bearing, and atruck frame supported by said box, said frame and box being provided with cooperatin lugs for limiting the .upward turning 0% the box whereby the box is caused to move bodily upwardly in its inclined position to the axle upon further upward movementof'the outer end of the box after said lugs have been brought into engagement with each other.

5. In a railway truck, the combination of an axle provided with a journal having flanges forming end thrust bearing faces, a bearing mounted upon the journal and having substantially semi-circular end faces 00- operating with said thrust bearing faces, a journal box enclosing said journal and bearing and having its lower wall spaced from the journal to permit the outer end of the box to be turned upwardly for the removal of said bearing, and a truck frame supported by said box, the exterior face of each side of said box being provided with an outwardly extending lug, and said truck frame being provided with two pairs of lugs, the elements of said pairs of lugslying truck, the combination of outer end of on opposite sides of said box lugs and being spaced therefrom for limiting the upward turning of said box whereby the box is caused to move bodily upwardly upon further application of lifting force when the limit of its turning movement has been reached.

6. In a railway truckoth'e combination of an axle provided with a journal having end flanges forming thrust bearing faces, a bearing mounted on the journal, a journal box enclosing said journal and bearing and having its lower wall spaced from the journal to permit the outer end of the box to be turned upwardly for the removal of said bearing,

and a truck frame supported by said box, said frame and box being provided with cooperating elements for limiting said upward turning of the box.

7 In a railway truck, the combination of an axle provided witha journal having flanges forming end thrust bearing faces, a bearing mounted upon the journal andhaving substantially semi-circular end faces 00- operating with said thrust bearing faces, said bearing being provided with laterally extending retaining lugs intermediate its ends, a journal box enclosing said journal and bearing and having a depression at its lower outer end to permit the outer end of the box to be turned upwardly at an angle to the axle for the removal of said bearing, the side walls of said box being provided with pockets to receive said bearing retaining lugs, and a truck frame supported by said box, said frame and box being provided with cooperating lugs for limiting said upward turning of the box.

8. In a railway truck, the combination of an axle provided with a journal having a flange at its outer end, a bearing mounted on the journal, and a journal box enclosing said journal and bearing and mounted to have its outer end elevated to remove the bearing, said box having a depression in its lower outer portion to receive said journal flange when the outer end of the box is elevated.

9 In a railway truck, the combination of an axle provided with a journal having a flange at its outer end, a bearing mounted on the journal, and a journal box enclosing said journal and bearing and mounted to have its outer end elevated to receive the bearing, said box having a depression in its lower outer portion forming a lubricant well and capable of receiving said journal flange when the outer end of the box is elevated, the outer face of the depression-forming part of the box being flattened to form a jacking pad.

10. In a railway truck, the combination of an axle provided with a journal having an end flange, a bearing mounted on the journal, a journal box enclosing said journal and bearing and having its lower wall spaced from the journal to permit the outer end of the box to be turned upwardly for the removal of said bearing, each side of the box being provided with an outwardly-extending lug, and a truck frame supported by said box and provided with lugs arranged on opposite sides of said box lugs, said frame and box lugs cooperating to limit said upward turning of the box.

11. A railway car truck journal box having the bottom formed at an, angle with the inside of the top of the box so that the norm'al jack face brought against the bottom of the said box in lifting same will bring it to the proper angular position for removing or inserting the bearing.

12. A railway car truck journal box having the outside of the bottom formed at an angle with the inside of the top wall so that the normal face jack brought against the bottom of the box in lifting same will cause it to rotate to the necessary angle to allow the removal and insertion of the bearing.

13. A railway-car truck journal box having the outside of the bottom wall formed at an angle with the inside of the top wall so that the normal face jack brought against the bottom of the box in lifting same will cause it to rotate to the necessary angle to allow the removal and insertion of the bearing.

In testimony whereof, I sign my name.

EDGAR W. SUMMERS.

Witness:

EDWIN O. J onus. 

